TY - BOOK AU - Leung, Wai-Ching TI - Revision in optics and refraction SN - 0340646136 (pbk) U1 - 617.7 PY - 1997/// CY - London PB - Arnold KW - Eye-Diseases KW - Ophthalmology KW - Questions answers KW - MCQs KW - Eye KW - IIMC N1 - Includes Index ER -